Wasn't the Federal Gold Medal actually made by RWS? Seems I recall reading that.
RWS and Norma ammo is partnered somehow. RWS being made in Germany, but don't think they made the Federal Gold Medal Match ammo. As far as I know Lapua also used a similar priming system as this Federal GMM, with the dimple in the middle of the case. As far as the research goes, that I've done, the older Federal ammo like what I have was made in America by Federal. It was quite the operation from what I hear. I did see where the newer Federal Ultra Match is/was made by RWS on the R50 production line. It is made to Federal specifications, but from what I've heard, is not quite as good as the older stuff I have pictured. It would be fun to research it further.